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Biology Coursework: Skills F, G and H An experiment was performed to see the relationship between the length of a potato chip and the amount of oxygen it produces when hydrogen peroxide is added. Hydrogen peroxide is toxic and is broken down in a catabolic reaction by the enzyme catalase, to form water and oxygen. An equation for this reaction is shown below: 2H2O2 ---------- 2H2O + O2 Figure 1 below, shows the results from this experiment. Length of potato chip (mm) Volume of oxygen produced in 5 minutes (cm3) Set 1 Set 2 Set 3 Set 4 Set 5 Set 6 Set 7 Set 8 Set 9 Set 10 Set 11 Set 12 5 1 2 2 1 2 0.75 3 5.5 2.5 0.75 5.5 3 10 4.5 4.5 4 3 4.5 5.5 13 6.5 6 3.25 6.5 5 15 7 9 6 6 9 7 16 6.5 4 4 6.5 4 20 10 11.5 10 9 11.5 9.5 19 20 8 6.5 20 8 25 14 14 14 12.5 14 12 22 23 12 8 23 11 Figure 1. I have decided to use the first six sets of results to calculate my average as they all fairly similar to each other and appear to be following the correct trend: As the length of the potato chip increases the amount of oxygen produced also increases. Sets 7, 8 and 11 have higher results...

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